George L. Trigg & Walter Sullivan. (1981). Encyclopedia of physics. Addison-Wesley Pub. Co., Advanced Book Program.
Lua i Stíl Chicago (17ú heag.)George L. Trigg agus Walter Sullivan. Encyclopedia of Physics. Reading, Mass: Addison-Wesley Pub. Co., Advanced Book Program, 1981.
Lua MLA (9ú heag.)George L. Trigg agus Walter Sullivan. Encyclopedia of Physics. Addison-Wesley Pub. Co., Advanced Book Program, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.